YOU SAID:

in front of the door up there, you can open it.

INTO JAPANESE

あそこのドアの前で、あなたはそれを開くことができます。

BACK INTO ENGLISH

In front of that door you can open it.

INTO JAPANESE

そのドアの前であなたはそれを開くことができます。

BACK INTO ENGLISH

In front of that door you can open it.